Planetengetriebe

摘要

1,163,024. Toothed gearing. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 9 Nov., 1967 [16 Nov., 1966], No. 51425/66. Heading F2Q. Helical epicyclic gearing has an internally toothed annulus gear 8 (Fig. 1) supported by a flexible steel corrugated bellows 9 extending substantially coaxially about the annulus gear, the bellows being secured at one end to the annulus gear and at the other end to a fixed gear casing 12, and a thrust member 13 resiliently reacts the axial thrust of the annulus gear. The thrust member 13 is a resilient ring secured to the casing 12. Oil is supplied to the thrust face via ducts 16, 17. The annulus gear 8 meshes planet pinions 4 in a carrier 5 secured to a shaft 2, the planets meshing a sun gear 3 on a shaft 1. In Figs. 2, 3 (not shown) two annulus gears (8, 81) supported by respective bellows and having respective thrust members mesh a common set of planet pinions. In Fig. 5, two annulus gears 30, 31 of opposite helix angles mesh double-helical planets 20, 21, the respective thrust members 27, 28 bearing against one another. In a modification (Fig. 4, not shown) the axial thrusts of the two annulus gears (22, 23) are reacted one against the other via helical compression springs (26) therebetween. In a non-epicyclic form (Fig. 6, not shown) the annulus gear (81) is connected by the bellows (9) to the shaft (2), and the carrier (51) of the intermediate gears (4) is non-rotatably supported in the gear casing (33).